[patch] drm/vmwgfx: fix a warning message

[Dan Carpenter]

The WARN_ON() macro only takes a condition argument, it doesn't take
a message.  I have converted this to WARN() instead.

Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c 
b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index a8baf5f..b6a0806 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -390,7 +390,7 @@ void *vmw_fifo_reserve_dx(struct vmw_private *dev_priv, 
uint32_t bytes,
        else if (ctx_id == SVGA3D_INVALID_ID)
                ret = vmw_local_fifo_reserve(dev_priv, bytes);
        else {
-               WARN_ON("Command buffer has not been allocated.\n");
+               WARN(1, "Command buffer has not been allocated.\n");
                ret = NULL;
        }
        if (IS_ERR_OR_NULL(ret)) {